I have found the other versions of my question on SO and have already tried to contact Google through their dev support trying both the chat/email options, but have yet to get a straight answer about this.
I have an app that is currently using the internal testing track on Google Play. I have numerous testers all of which can download the app, use it and test it no problem. The reason I want to use internal testing, for now, is that the documentation states there is no verification period between versions and testers get the new version immediately.
The issue I am currently experiencing is that a tester who already has the app is not served an updated version when they return to the store page. If they uninstall and reinstall the app, the new app they install serves the new version.
My question is why would the new version be available but not present the user with the 'Update' button to install the new version?
Is there an issue with the app being on the internal test track? Does my app need to be verified? Can an app be verified using the internal test track? It has been 17 days since my initial upload to verify the app, which seems rather long to wait for the verification.
Does anyone have some insight into this issue? I am running out of ideas and it is rather annoying to have testers need to uninstall and reinstall the app every new version I would like tested.